# physics

posted by .

A watermelon cannon fires a watermelon vertically up into the air at a velocity of + 9.50 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is the elapsed time in sec?

• physics -

t = (V-Vo)/g = )-9.50)/-9.8 = 0.969 s.

## Similar Questions

2. ### physics

As a science project, you drop a watermelon off the top of the Empire State Building, 320 m above the sidewalk. It so happens that Superman flies by at the instant you release the watermelon. Superman is headed straight down with a …
3. ### physics

4.80-kg watermelon is dropped (zero initial speed) from the roof of a 25.0-m-tall building. a) Calculate the work done by gravity on the watermelon during its displacement from the roof to the ground. b) What is the kinetic energy …
4. ### Physics

I riding in a car at constant velocity and see an open manhole. I take out an watermelon and hold it out window. My speed is 10m/s and the initial height of watermelon is 1 m. I need to do a calculation to be able to know how far ahead …
5. ### Physics

riding in a car at constant velocity and see an open manhole. I take out an watermelon and hold it out window. My speed is 10m/s and the initial height of watermelon or any fruit is 1 m. I need to do a calculation to be able to know …
6. ### physics

the largest watermelon ever grown had a mass of 118 kg. suppose this watermelon were exhibited on a platform 5 m above the ground . after the exhibition, the watermelon is allowed to slide along to the ground along a smooth ramp, How …
7. ### Physics

A watermelon cannon fires a watermelon vertically up into the air at a velocity of +11.5 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is (a) its velocity, …
8. ### physics

David Wetterman drops a 5 kg watermelon from the top of a 30 m building. What is the velocity of the watermelon as it smashes into the ground (neglecting air resistance)?
9. ### Algebra

A watermelon is dropped from the top of a building The height of the watermelon above the sidewalk is given by h(t)=-16t^2+240 with t representing number of seconds How many seconds does it take for the watermelon to hit the sidewalk
10. ### Physics

A watermelon cannon fires a watermelon vertically up into the air at a velocity of +9.5m/s, starting from an initial position of 1.2m above the ground. When the watermelon reaches the peak of its flight, what is the velocity, the acceleration, …

More Similar Questions